Improvement in machines for pumping



A. H. LOW. Machine for Pumping.

No. 202,841. Patented April 23, I878.

".FEI'ERS, PHQTO UTHOGRAPflER, WASHINGTON D C UNITED STATES PATENT OFFICE.

ALVIN H. LOW, OF BULLION, PENNSYLVANIA.

IMPROVEMENT IN MACHINES FOR PUMPING.

Specification forming part of Letters Patent No. 202,841, dated April 23, 1878; application filed January 18, 1878.

To all whom it may concern:

Be it known that I, ALVIN H. LOW, of Bullion, in the county of Venango, in the State of Pennsylvania, have invented a new and Improved Machine for Pumping Oil, Water, or other Fluids from Wells; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying'drawing, and the letters of reference marked thereon.

The nature of my invention consists in the following described apparatus or machine, consisting of an axle or rock-shaft, levers, oscillating pendulum, and balance weight, designated by the letters A, B, G, D, and E in the accompanying drawing, for pumping oil or other fluids from wells.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

The axle 'or rock-shaft A, I fix upon supports arranged at a desired height for the purpose. To the rock-shaft A, I make fast the levers B and O, on opposite sides. At right angles with the levers B and. G, I make fast to the rock-shaft A the suspended lever or oscillating pendulum D D. I'then connect the lever B with the sucker-rod, which is attached to the pump-valve or apparatus in the well. To

the lever O, I connect the weight E, to counterbalance in a greater or less degree the weight of the sucker-rods and fluid suspended from the lever B. I then make a weight fast to the suspended lever or pendulum D, to perfect the balance between the levers B and O, and to regulate the time and motion in the operation of pumping. In some cases the balance-weight D may be dispensed with.

I now apply the power at any convenient point, as upon the rock-shaft A, the pendulum D, or the weight E, sufficient to overcome the suction of the valves and the friction caused by the working of the machine; and the pumping is thus effected.

What I claim as my invention, and desire to secure by Letters Patent, is-- 1. The counter-balance E, in combination with the axle A, lever-pendulum D, levers B and C, with sucker-rods of pump, substantially in the manner and for the purpose herein set forth and shown.

2. The combination of the rock-shaft A,the levers B and O, the balance-weight E, and balance-lever pendulum D, with sucker-rods of pump, substantially in the manner and for the purpose herein set forth and shown.

ALVIN H. LOW.

Witnesses:

W. A. STEWART, I. G. ANDERSON. 

